I’ve just released a new open source project called JS-Signals. It’s an event/message system similar to pub/sub and DOM2 Events but that doesn’t rely on strings to broadcast/subscribe to events, it has also some extra features that usually aren’t available on the other systems.
JS-Signals was heavily inspired by Robert Penner’s AS3-Signals but it is NOT a direct port, which means it has a different implementation and features. I’ve also
stolen borrowed a few ideas from Joa Ebert fork ;).
Download it and get more info at http://millermedeiros.github.com/js-signals/.
Ideas and contributors are welcome!